Microscopic model for elastostatic and elastodynamic excitation of chiral sculptured thin films

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Abstract

The Mori-Tanaka average stress and the Eshelby tensor for ellipsoids are used within the framework of localized homogenization to estimate the elastic constitutive properties of chiral sculptured thin films (STFs) from their microstructural details. The devised model contains five arbitrary parameters, whose values can be decided upon by suitable experimentation. Composite compliances governing the elastostatic and the elastodynamic responses of chiral STFs to axial excitation are derived and their dependences on certain microstructural features are examined. The characteristics of the polarization-discriminatory Bragg phenomenon are also delineated.

Original languageEnglish (US)
Pages (from-to)1277-1298
Number of pages22
JournalJournal of Composite Materials
Volume36
Issue number11
DOIs
StatePublished - Jul 22 2002

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Chemistry

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